The most developed science remains a continual becoming

I could not think without writing.

Logic and mathematics are nothing but specialised linguistic structures.

Education, for most people, means trying to lead the child to resemble the typical adult of his society . . . but for me and no one else, education means making creators. . . . You have to make inventors, innovators...not conformists

Reflective abstraction, however, is based not on individual actions but on coordinated actions.

Intelligence is what you use when you don't know what to do.

Chance... in the accommodation peculiar to sensorimotor intelligence, plays the same role as in scientific discovery. It is only useful to the genius and its revelations remain meaningless to the unskilled.